Peter Postma

Versatile system administrator with knowledge of Linux, OSX/macOS, MS Windows, Active Directory, hardware management, networking, monitoring, documentation, asset management,  digital signage, scripting and more.
Customer focused, solution-oriented, social, innovative, outspoken.

Rõika 15

10617 Tallinn

+372 5375 2328
skype: pepoweb


Self employed, Tallinn— Consultant/System Administrator

November 2020 - current

Supporting several customers with their daily IT problems, from setting up a new office to email issues and from setting up and configuring a Zabbix server to monitoring a server park  to creating Ansible playbooks to automate server deployment and then some. 

Relax Gaming, Tallinn— System Administrator

March2016 - January 2020

Supporting a mixed office environment with Microsoft, Mac and Linux clients and all it's infrastructure. Setting up 3 remote offices in foreign countries and supporting them remotely, while the company grew from 35 to 175+ people. Implementing Active directory and central software management. Documentation, monitoring, digital signage, ansible, member of event team. 

Playtech, Tallinn— Operation and Linux Sysadmin specialist

July 2015 - November 2015

Keep an international HA Linux cluster up and running. Performing upgrades and new installations, both in virtual and bare metal environments.

CJIB, ​ Leeuwarden, NL — ​ End User Services specialist

January 2009 - June 2015

At CJIB (part of the Dutch department of Justice) I started working as a 1st line support engineer. Also think tank member for use of Social Media, documentation specialist and administrator for the local Atlassian Suite; In 2015 I migrated the suite to a new database platform and did a major upgrade.

DCF, ​ Leeuwarden, NL​ ​ — ​ Network administrator

 May 2007- November 2008

I worked as a network administrator, configuring layer 2 and 3 network connections. In addition, I maintained dns-, web-, mail-, proxy- and radius servers. These were mainly based on Linux (Fedora).

Wannit, ​ Leeuwarden​, NL ​ — ​ System administrator

November 1999- May 2007

Wannit did system integration for small and medium sized companies and schools. Here I worked with Novell products. Worked on a Windows 98 to XP migration. Together with a co-worker I set up a service desk.

Aquero Hands, ​ Rotterdam, NL — ​ Magic developer

November 1998 - November 1999

Worked on several projects as a Magic developer.


  • linux
  • macOS
  • windows
  • networking
  • monitoring
  • documentation
  • virtualisation
  • system integration
  • communication


Puppet - ​ 2014 (puppetlabs) Introduction course to the powerful deployment tool 

Puppet RHCA - ​ 2012 (global knowledge) Training for RHCA certification. 

ITIL - ​ 2010 (CJIB internal) Introduction to ITIL

Cisco Administrator -​ 2008 (DCF) Internal course for CCNA

CNE - ​ 2001 - 2006 (landis) 

MCSE 2003 -​ 2003 -2005 (foundation)


Dutch (C2)
English (C2)
German (B2)
French (A2)
Estonian (Just started)